May 19th, the day of record-breaking heat in MN

We're trying to wean these bottle babies. Opinions, anyone? They were born April 9th, so. . . they are 5+ weeks old? The Premier catalog says, cut 'em off, water only, at 5 weeks. The Storey Guide to Raising Sheep says only "days. . . 18?-35" feed 3x day, a pint. . . no more data. Implied, no more bottle after 35 days? I couldn't cut 'em off, not yet-- they're getting a baby bottle--8oz, twice a day, with a bottle of water in between. Of course they have a great grass/alfalfa pasture. And they are fat. But they still look like little lambs, knee high-- a week or two older than all my other lambs, some of whom have nearly caught up to them! Let me know your thoughts, thanks.
This is, you know, what happens when you try to photograph overly friendly sheep-- they come running and fill the camera frame:

These next two pics are now a week to two weeks old. Did I mention I've been sick? REALLY sick, like, was that the swine flu? Or just bronchitis? A whole week, plus.
Here's Little Red Oak Catnip again, a smallish spotted ewe out of LRO Yarrow and Minwawe Equator. Laid-back, friendly. A good mama. Her ewe lambs are starting to like being petted. Splash and Smudge, for the marks on their heads.

And the pack of brown lamb-boys. Many are sprouting horn buds-- which I'll keep an eye on. I'm hoping for one good polled or scurred rammy to use on some ewes this year. Probably the twin to January, the katmoget in my last post. His name is March, or Mars. . . and he's the alert little guy on the right, with the white wisps on top. But gee, that middle lamb looks pretty good. . . time will tell.